Up next First Annual $30,000 Rocky Top Diesel Shootout Published on April 17, 2016 Author Jim Allen Tags 1983 ford diesel, 1984 f250 diesel, 1985 f350 diesel, 1985 ford diesel, 6.9L, 7.3L, Chevy, diesel engine, diesel trucks, diesel world, Dodge, DW, Features, first diesel pickup, first diesel pickup truck, first diesel truck, ford, ford 5.7 diesel engine, Ford Diese, GM, ih, IH V-8, international harvester, Mitsubishi, power stroke, Turbodiesel, Share article Facebook 0 Twitter 0 Mail 0 Ford’s First Diesel Pickup Engine It was the 1970s and people were reeling from the shock of gas prices that had tripled in just a few short years. The effect was profound: a national 55 mph speed limit, government-mandated fuel economy standards, and consumers scrambling for vehicles with better fuel economy. Diesel pickup engines, at the time not much of a presence in the American car and light truck market, were immediately eyed as a fuel economy answer. The collective American eyebrow raised at the idea of noisy, smelly, smoky diesels, not to mention the notable scarcity of diesel fuel stations at the time, but the diesel’s high fuel economy and low-cost fuel were attractive, especially in the truck world where a torquey gasser meant sub-10-mpg fuel economy. In 1978, GM and Dodge tied for being the first to offer a diesel pickup engine. The Chevrolet entry was a C10 with the notorious Olds 5.7L V-8 making 120 naturally aspirated horsepower. Dodge fielded a 4.0L (243ci) Mitsubishi NA diesel inline-six with 100 rip-snorting horsepower in half and 3/4-ton 4×2 and 4x4s. Dodge dropped the Mitsu after 1979 and remained diesel-less until 1989, but Chevrolet continued to offer the 5.7 in C10s through 1981, and then replaced it with the vastly better 6.2L in 1982. The stage was now set for a grand entrance by Ford. Introduced in 1993, the original 6.9L diesel evolved rapidly. The first big update was a boost in the compression ratio from 20.7 to 21.5:1. The 1983 blocks, casting number 1805440C1, were problematic due to possible cracking issues. As a result, the rebuilding industry doesn’t rebuild these blocks. In 1984, an improved block design was introduced, casting number 1807996C1. It has some extra material and ribbing to reduce the potential for cracks. The 1983-1984 block also had some issues with cracks around the block heater area, but this was dealt with in 1985. The 1983 also had cracking issues with the heads (casting numbers 1805296C1 and 1809199C1). A stronger design was instituted from 1984 and remained the same all through the 6.9L run (casting numbers 1801809215C91 and 1805855C1). The late-1985-and-up pickup engines are the best of the 6.9s. Subscribe Our Weekly Newsletter FORD AND INTERNATIONAL HARVESTER TEAM UP International Harvester started development work on a V-8 diesel for medium-duty trucks in 1978, with architecture based on IH’s 446-cid industrial gas V-8. “Aaakkk,” you say, “a conversion!” Not really—the diesel merely adopted similar block dimensions that made tooling-up easier. It isn’t exactly clear when Ford Motor Company’s interest was piqued by the IH diesel, but in 1981 a $500-million agreement was signed for IH to develop the engine for Ford light and medium duty trucks and supply engines for five years. Because it was a hefty engine, weighing in at more than 900 lbs., it was soon clear this was going to be a ¾-ton-and-up powerplant. The Ford diesel light trucks debuted in late 1982 as 1983 models, with the new diesel pickup engine offered as a $2,225 option. The lightest-duty truck in which the new 6.9L (420-cid) diesel was available was the F-250HD (8,600 lbs. GVW). Availability went all the way up the light truck line including the E-Series vans and up to the medium-duty trucks. The first advertised rating was just 161 hp and 307 lb-ft, with a 19.7:1 compression ratio. These were likely preliminary specs because 170 hp and a 20.7:1 compression ratio soon became the advertised norm. The E-250 and E-350 vans were available with the IDI diesel, but only with an automatic transmission. The diesel E-350 dually chassis was popular for motor homes and well-liked for its fuel economy, which was significantly better than the big-block gasser. Jonathan Lalonde of Ontario, Canada, owns this 26-foot 1987 F-350 Corsair with a 6.9-liter IDI, C6 automatic and 3.54 gears. Last count, this rig had nearly 170,000 miles on it. In 1988, the 7.3L IDI debuted touting a number of improvements. Power was advertised at 180 hp and torque bumped to 338 lb-ft. The 7.3L blocks can be distinguished by a 10809000C1 casting number. With the heads off, they can be identified by their round coolant ports at the corners of the block deck, as opposed to the triangular ports on the 6.9. The 7.3 also benefitted from larger head bolts (1/2-inch vs. 7/16-inch) and of course the larger bore. Thinner cylinder walls, changes in coolant flow and an increased tendency towards core shift made the 7.3 vulnerable to cavitation and pinholes from the water jacket into the cylinder. The oil filler was cast into the pump gear cover. This is a 1992 pickup engine, which featured the serpentine belt system. The 6.9 featured oil-cooled pistons, four bolt mains, a massive forged crank with 2.2-inch rod and 3.1-inch main journals, valve rotators, roller tappets, and a gear-driven cam and injection pump. It was naturally aspirated used the Ricardo V combustion chamber. Indirect injection came from a Stanadyne (Roosa-Master) DB2 rotary pump and pintle-type injectors that popped at 2,100 psi. Issues with cold starting appeared right away, so for the 1984 model year the compression ratio was increased to 21.5:1. Torque rose to 315 lb-ft as a result, and that’s where output would stay for the remainder of the engine’s run. For 1988, the pickup engine got a makeover. The bore was increased by 0.18-inch, bumping up displacement to 7.3L (444 cid). The heads, head bolts, head gaskets, rocker gear and combustion chambers got a work over and the glow-plug system was completely revised. The injection system also got some tuning alterations. As a result, output was boosted to 180 hp at 3,300 rpm and torque to 338 lb-ft (though some spec sheets show 345 lb-ft). In mid-1992, power output was increased to 185 and torque went up to 360. The 1992 model year also brought a serpentine belt system. The revisions to the 7.3 were largely successful but there were stumbles. The overbore and cooling system changes resulted in an increased tendency towards cavitation damage on the cylinder walls in the water jacket. This was manageable using the right anti-corrosive coolant additives (called SCAs, supplemental coolant additives) but it became a well-known problem. The pinnacle of the Ford IDI was the 7.3L IDIT turbo engine. It was advertised at 190 hp and 385 lb-ft, but is generally considered to have been underrated and undertuned by Ford so as not to upstage the upcoming Power Stroke. It was a considerably more robust pickup engine, with beefier pistons and rods, a stronger block (casting number 10809000C3) and head gaskets, Inconel exhaust valves and a larger oil cooler. The IDI reached its zenith in late in 1993, when the first turbocharged 7.3 was introduced. It mounted a Garrett wastegated turbo with an A/R of 0.82. Advertised power and torque were 190 hp and 385 lb-ft, but this engine was somewhat underrated. If you look at the nearby power chart, you will see it’s mysteriously cut off at 3,000 rpm vs. the NA engine going to 3,300. The power line looks to still be climbing at 3,000 and extrapolations show the turbo engine would have developed more than 200 hp at 3,300 rpm. Speculation within the IDI enthusiast community is that with the new 210-hp Power Stroke engine on the horizon, Ford marketing wanted to make sure the new engine would be more appealing than the old one. The IDI turbo engine was hyped more for its high-altitude performance than its raw power, but tweaking in the intervening years have shown the IDI turbo is fully capable of 250 hp with only minor tuning. Internally, the IDI turbo received improved head gaskets with a heavier fire ring. The pistons were given keystone rings and anodized crowns. The wrist pin diameter was increased from 1.110- to 1.308-inch, Inconel exhaust valves were added, and the oil cooler bundle was increased from 24FPI (fins per inch) to 30. The injection pump calibration was altered and new injectors were fitted. Minimum boost was 5 psi but most developed 8-10 psi in service. The Turbo IDI and the Power Stroke shared the stage in 1994 and sales overlapped a little after the Power Stroke’s mid-year intro. In reality, the Power Stroke is very much the IDI engine’s progeny. The IDI’s heritage is clear, especially in the first-generation Power Strokes, and there are even a few interchangeable parts. THE IDI TODAY Nearly 1.5 million 6.9L and 7.3L IDI engines were produced by International Harvester (now known as Navistar International). They are truly one of the cornerstones of the growth of diesel power for pickup engines. The IDI is an old-school engine and can’t hold a candle to the modern electronic engines in the power department, and yet it has a large and loyal following. There are countless IDIs still on the road, some still working in commercial livery, and they seem to just go on and on. No question, the Ford IDI engine is nowhere near the end of the road. Corey Zakeosian’s OBS 1994 SuperCab turbo diesel was purchased with the Truxarossa body kit from the Ford dealer. Ford and the dealer network had agreements with various kit and coachbuilders to convert trucks. The Ford Package 1983-1986 – The Bullnose Era The Ford diesel was in full swing when this 1984 F-250HD 4×4 XL made its debut. In this era, the XL was a step up from the base model and sat in the middle between the Base and XLT (later XLT Lariat) models. The “HD” in the designation denoted the 8,600 lbs. GVW, the lowest GVW light truck in which the 6.9L diesel was offered. Top of the line was XLT, to which “Lariat” was added. Shown here is Frank Butt’s 1986 F-250HD 4×2 SuperCab, bought new by him in 1986. Besides the Regular Cab longbed and the SuperCab, Ford offered a Crew Cab version. The 1983-1986 Bullnose era interiors ranged from a rubber mats, vinyl seat, bare-bones hose-out interiors to this plush velour cabin with carlike options. Ford debuted a new line of trucks in 1980 and the diesel entered the game right in the middle of that 1980-86 generation. Today, this body style is often called the “Bullnose” for its broad snout. It came in a Standard (base) trim, mid-line XL and full-boat XLT. Body styles included regular cab longbed, SuperCab longbed and, in some years, a crewcab longbed. “Lariat” was added to the XLT designation in 1985. In this era, you had the choice of two transmissions, the Warner T-19 four-speed or the legendary C-6 automatic three-speed. If you ordered four-wheel drive, it came with a BorgWarner 1345 transfer case. Axles varied by year. To mid-1985, the rear axle was a Dana 61 or 70 axle. In mid-year 1985, the 10.25-inch ring gear Ford Sterling debuted in semi or full-float version (full-float only on the diesels). F-350 DRWs most often had Dana 70 HD axles but there are DRW Sterling axles out there too. Up front, the twin I-beam non-driving axles carried the load for 4x2s. The F-250HD 4×4 had a twin traction beam (TTB) Dana 44 as standard with a Dana 50 TTB optional, while the F-350 came standard with the stronger Dana 50 TTB. In 1985, the Dana 60 solid front axle was introduced and most F-350s had it. Only two axle ratios were offered for the diesels, 3.55 and 4.10:1. This was to remain the practice all the way through the IDI era. 1987-1991 – The Flatnose Era The IDI-powered F-350 cab chassis was one of the most popular chassis cabs for conversions. In 1990 you could get a diesel-powered SuperCab F-350 XLT Lariat dually with all the goodies, although this one is in a plain white wrapper. In 1987, Ford made some styling changes but did not alter basic body shape. To IDI diesel nuts, these trucks are known as the “Bricknose.” With their flattened nose and flush headlights, these trucks had a more aerodynamic look. Fenderwell shapes changed as well the interior. A small “Diesel” badge appeared under the driver’s headlight. Trim levels changed a little, with the base level now called “Custom,” and each level moved slightly upmarket. The 6.9L pickup engine soldiered on for 1987, but was replaced by the 7.3 for model year 1988. A big innovation that came later in 1987 was the ZF five-speed manual transmission option. At first, buyers could choose between the standard T-19 four-speed, the ZF five-speed, and the C-6 automatic. By 1988 the T-19 had been dropped and the five-speed became the only manual option. Like the T-19, it had a taller first gear than the gasoline version. For19’89, the E4OD overdrive automatic was offered in the diesel line. That was a big innovation, offering the mpg improvements of overdrive to those desiring automatics, but it had taken Ford a while to build one stout enough for use in the higher GVW light trucks. Trucks were built with a mix of three-speed C-6 and E4OD automatics through 1994, though in later years the C-6 was available only in the commercial cab and chassis lines. Suspension and axles stayed the same as the previous trucks but in this era the Dana 44 TTB was dropped and the F-250HD inherited the Dana 50 as the standard front end for 4x4s. With a few exceptions, F-350s still used the Dana 60. 1992-1994 – The OBS Era The upgraded 1992 Ford truck line was where the IDI would make its final bow and the Power Stroke would take over. The only thing to mark a naturally aspirated diesel in this era was a badge on the tailgate. In the case of this 1993 turbo diesel truck, there’s an additional “Turbo Diesel” badge on the fender. This is Jon Miller’s stunningly restored 1994 F-350. The front wrap changed again for ’92 but once again the basic body shape remained the same. For some reason, Ford diesel fans call this generation “OBS” for Old Body Style. We suppose that’s because the Power Stroke engine was installed into this body well into the ‘90s. The interior got a big makeover, but the powertrain options changed little. The big news came in 1993 when Ford introduced a turbocharged version of the IDI diesel. The naturally-aspirated IDI continued as the baseline diesel option but output had increased to 185 hp and 360 lb-ft, the highest power and torque levels the NA IDI would achieve in factory trim. The Power Stroke was a midyear entrant for 1994 and the IDI trucks were soon in the “Oh, by the way” category. DW FREQUENTLY ASKED QUESTIONS How can the lifespan of a Ford diesel engine be extended through maintenance? Extending the lifespan of your Ford diesel engine involves a series of dedicated maintenance practices. Use Quality Fluids and Parts: Opt for high-quality fluids, such as premium oil and coolant, to ensure your engine runs smoothly. Regularly replacing old fluids with new ones helps maintain optimal performance. Equally important is using OEM (Original Equipment Manufacturer) parts. These components are designed specifically for your engine and ensure greater compatibility and longevity. Follow Manufacturer Recommendations: Adhere to the maintenance schedule provided in your vehicle’s manual. This includes timely oil changes, filter replacements, and inspections. Regular check-ups at authorized service centers can reveal potential issues before they become costly repairs. Monitor Engine Health: Stay vigilant about your engine’s condition. Look out for unusual noises, leaks, or changes in performance. Catching these early can prevent them from developing into more severe problems. Keep It Clean: Dirt and debris can negatively impact engine efficiency. Regularly clean the engine bay and undercarriage to prevent buildup that could lead to corrosion or overheating. Drive Responsibly: Adopt a driving style that minimizes stress on the engine. Avoid excessive idling and harsh acceleration, which can strain engine components. By incorporating these practices into your maintenance routine, you ensure not only longevity but also optimized performance throughout your engine’s life. How can proper maintenance maximize the lifespan of a Ford diesel engine? How Proper Maintenance Maximizes Your Ford Diesel Engine’s Lifespan Ensuring the longevity of your Ford diesel engine hinges on consistent and proper maintenance. Following best practices in maintenance not only prolongs engine life but also optimizes performance and fuel efficiency. Key Maintenance Practices for Your Engine Use Quality Engine Fluids: Always opt for premium engine oils and other essential fluids. These not only lubricate and cleanse but also protect engine components from wear and tear. Choose OEM Replacement Parts: When parts need to be replaced, stick with Original Equipment Manufacturer (OEM) components. These parts are specifically designed to fit and function perfectly with your vehicle, ensuring reliability and longevity. Adhere to Service Schedules: Regular maintenance appointments are crucial, whether your vehicle is used in standard or demanding conditions. Routine checkups allow for early detection and correction of potential issues. The Impact of Consistent Care A well-maintained Ford diesel engine can handle high mileage with ease. With a solid track record, some models have been known to surpass 500,000 miles, while dedicated owners have reported engines lasting up to 1.3 million miles. Such remarkable endurance is achievable with diligent maintenance. Tailored Maintenance Plans By following a structured maintenance plan, you can ensure that your engine operates at peak efficiency. Check for schedule recommendations in your vehicle’s manual and consult professionals for tailored advice, ensuring your engine’s optimal health over time. In conclusion, regular and thoughtful maintenance is the cornerstone of extending the life of your Ford diesel engine. With the right attention and care, your engine can perform reliably for countless miles, making every journey smooth and worry-free. What are the towing capacities of various Ford diesel engines? Towing Capacities of Ford Diesel Engines High-Output Performer: 6.7L Power Stroke V8 Looking for top-tier towing power? The latest 6.7L Power Stroke V8 diesel engine is at your service. It’s renowned for its exceptional towing capacity, boasting an impressive 1,200 lb-ft of torque and 500 horsepower. This powerhouse can handle a maximum tow rating of up to 40,000 lbs, particularly when paired with a Max Tow Package on a model like the F-450 Regular Cab. Engine Comparison for Heavy-Duty Needs Ford trucks equipped with the 6.7L Power Stroke engines are specifically crafted for heavy-duty towing. Their remarkable performance sets the benchmark among diesel engines. Whether you opt for a standard or high-output version, these engines are up to the challenge. Understanding Your Options Choosing the right engine comes down to understanding your specific towing requirements. Not every situation demands top-tier torque, so exploring various models and trim levels can help you find the balance between capability and cost-effectiveness. Each engine variant offers unique contributions to the overall towing capacity, making it crucial to match your needs with the right configuration. Summary of Towing Power 6.7L Power Stroke V8 High Output: Up to 40,000 lbs towing capacity Standard 6.7L Power Stroke V8: Suitable for substantial, though slightly lesser demands in comparison to the high-output version. With informed choices, you can maximize effectiveness and efficiency in your towing endeavors. Always consider what each engine can offer and align that with your individual towing needs. How does the 6.0L Power Stroke V8 compare to other Ford diesel engines? The 6.0L Power Stroke V8, introduced in 2003, is Ford’s attempt at maximizing performance while minimizing engine size. Delivering 325 horsepower and a robust 560 lb-ft of torque, this engine stands out for its balance of power and efficiency. Advanced Features This engine is equipped with several innovative technologies: Variable-Geometry Turbocharger: Enhances responsiveness and efficiency across a range of speeds. Exhaust Gas Recirculation (EGR) System: Reduces emissions, contributing to a cleaner operation. Second-Generation Fuel Injection System: Ensures precise fuel delivery, optimizing performance and fuel economy. Performance Comparison When compared to other diesel engines in Ford’s lineup, the 6.0L Power Stroke V8 holds its own. It is particularly noted for its advanced engineering and ability to fit into a variety of vehicle types. This makes it a versatile choice suitable for F-Series pickups, E-Series vans, and Ford Excursions. Conclusion While Ford offers larger diesel engines, the 6.0L Power Stroke V8 strikes a balance between power, innovation, and versatility. It remains a competitive option for those seeking a well-rounded diesel engine capable of handling both everyday and demanding tasks. What factors should be considered when choosing the best Ford diesel engine? Key Factors for Selecting the Ideal Ford Diesel Engine When deciding on the best diesel engine for your Ford vehicle, consider several crucial factors to ensure optimal performance and longevity. Durability and Mileage 7.3L Diesel V8: This engine is renowned for its robustness, often surpassing 300,000 miles. It’s a reliable choice for those prioritizing longevity, providing decent fuel efficiency ranging from 13 mpg in the city to 21 mpg on the highway. Power and Performance 6.7L Diesel V8: Known affectionately as the ‘Scorpion,’ this engine boasts impressive power, delivering up to 500 horsepower and 1,200 lb-ft of torque. It’s perfect for those who need robust performance and value long-lasting service. Fuel Efficiency 3.0L Diesel V6: This engine is ideal for fuel-conscious drivers who don’t mind sacrificing some power for better mileage. It achieves 21 mpg in urban settings and can reach up to 27 mpg on highways, particularly in models manufactured before 2022. Maintenance and Longevity Regular upkeep is vital across all engine types. Scheduled maintenance, alongside the use of quality aftermarket products, can significantly extend the life of any Ford diesel engine. By carefully considering these factors, you can select an engine that aligns with your driving needs, whether you prioritize durability, power, or fuel efficiency. What is the towing capacity of the 6.7L High Output Power Stroke V8 engine? Towing Capacity of the 6.7L High Output Power Stroke V8 Engine When it comes to towing heavy loads, the 6.7L High Output Power Stroke V8 engine stands out as a powerhouse. This engine is engineered for those who need to handle substantial towing tasks with ease. Gooseneck Towing: The engine can manage an impressive maximum gooseneck towing capacity of up to 40,000 pounds, making it ideal for the most demanding hauls. Conventional Towing: For conventional towing methods, this engine excels, offering a remarkable capacity of up to 30,000 pounds when paired with an F-450 Crew Cab. Payload: Not only strong in towing, it also supports a payload capacity reaching up to 8,000 pounds, allowing for versatile use in various situations. Whether for business or personal use, the 6.7L High Output Power Stroke V8 is equipped to tackle the toughest jobs, proving its reliability and strength. What are the key features of the 6.7L Power Stroke V8 engine? Key Features of the 6.7L Power Stroke V8 Engine The 6.7L Power Stroke V8 engine, fondly dubbed the ‘Scorpion,’ stands out for its impressive blend of power and reliability. Introduced in 2011, this engine immediately distinguished itself with a strong start, providing a notable 390 horsepower and 735 lb-ft of torque. Longevity and Reliability One of the standout attributes of this engine is its longevity. Many of these engines are known to reliably push through between 250,000 to 500,000 miles, making them a top choice for heavy-duty performance over the long haul. Performance Enhancements In 2017, the engine underwent significant upgrades to boost its efficiency and output. The inclusion of high-pressure common rail injection and an intercooler significantly elevated the power to 440 horsepower and 925 lb-ft of torque. This evolution marks a commitment to constant improvement, ensuring the engine stays at the forefront of performance. Recent Advancements Recent iterations have seen an even further leap in capability, with the high-output version now delivering up to 500 horsepower and an astonishing 1,200 lb-ft of torque. These enhancements ensure the engine remains a leader in power delivery for heavy-duty tasks. Popularity Among Enthusiasts Renowned among diesel aficionados, the 6.7L Power Stroke V8 engine is celebrated for its robustness and is often cited as one of the most reliable engines in the heavy-duty diesel segment. It’s a testament to the engine’s blend of performance and durability, setting a high bar for diesel engine alternatives in the automotive industry. What is considered the best Ford diesel engine? Choosing the best Ford diesel engine goes beyond just looking at raw power or torque. It’s all about finding the right harmony among several key factors. Performance is obviously a major player, but reliability and fuel efficiency are just as crucial. The engine must deliver strong, consistent performance while maintaining durability over time. Fuel economy is another essential element. A top choice should strike an excellent balance, offering enough power without guzzling gallons of diesel. But it’s not just about the engine itself; the support network, including parts availability and service expertise, enhances the engine’s longevity. In summary, the best Ford diesel engine combines unmatched performance, proven reliability, and superior fuel efficiency, all supported by a robust service network. This combination ensures drivers get the most value and satisfaction from their vehicles. What makes a great Ford diesel engine according to enthusiasts? For diesel aficionados, a remarkable Ford diesel engine isn’t just about raw power—it’s about legacy, reliability, and potential for customization. Among the top choices, the late-model 7.3-liter Power Stroke engine is highly revered. This engine is often suggested by diesel truck specialists when recommending engines for those interested in purchasing used trucks or seeking salvage options. Key Characteristics of a Great Ford Diesel Engine: Reliability and Durability The 7.3-liter Power Stroke is lauded for its robust design and dependability. Owners appreciate its ability to endure high mileage with minimal issues, making it a sound choice for those looking for longevity. Ease of Maintenance A standout Ford diesel engine is one that allows for straightforward maintenance routines. With readily available parts and a community well-versed in troubleshooting, maintaining these engines is relatively hassle-free. Potential for Performance Customization Enthusiasts often cherish engines that can be easily upgraded. Electronic tuners and other aftermarket performance enhancements are popular, enabling owners to push the boundaries of power and efficiency, even though these upgrades aren’t strictly necessary. Cult Following and Community Support A strong community of like-minded individuals who share tips, modifications, and experiences further enhances the allure of a Ford diesel engine. This community support offers invaluable resources for both novices and seasoned gearheads alike. Overall, a superior Ford diesel engine according to enthusiasts is one that combines enduring performance with the capacity for personalization, backed by a passionate community. What role does aftermarket support play in enhancing Ford diesel engines? Maximizing Diesel Potential: The Role of Aftermarket Support in Ford Engines When it comes to elevating the performance of Ford diesel engines, aftermarket support plays a vital role. Owners of engines like the robust 7.3L and 6.7L Power Stroke V8s find that while these engines are impressive right off the assembly line, additional modifications can unlock even more potential. Enhancing Performance and Efficiency Aftermarket options like intercoolers, air intakes, and exhaust systems are designed to boost your engine’s capabilities. By improving airflow and increasing power output, these enhancements can lead to noticeable gains in both horsepower and torque. This not only improves performance but can also refine fuel efficiency, allowing you to get more miles from each gallon. Improving Longevity and Reliability Aftermarket equipment extends beyond just performance tweaks. Products such as upgraded filters and engine tuners can enhance engine longevity and dependability. By optimizing the engine’s parameters and reducing wear, these solutions contribute to a more durable diesel engine that stands the test of time. Adapting to Future Fuel Technologies As alternative fuels become more prevalent, the aftermarket sector supports adaptations to keep these engines flexible. Third-party suppliers provide modifications that ensure Ford diesel engines remain compatible with future changes in fuel technology, protecting your investment for years to come. In essence, aftermarket support isn’t just an option; it’s a way to tailor your Ford diesel engine to meet specific needs and driving conditions, offering enhancements that go beyond factory capabilities. Whether you’re seeking more power or greater efficiency, the aftermarket industry offers a myriad of solutions to meet your goals. How has the Ford diesel engine evolved over the years? It was the 1970s and people were reeling from the shock of gas prices that had tripled in just a few short years. The effect was profound: a national 55 mph speed limit, government-mandated fuel economy standards, and consumers scrambling for vehicles with better fuel economy. Diesel pickup engines, at the time not much of a presence in the American car and light truck market, were immediately eyed as a fuel economy answer. The collective American eyebrow raised at the idea of noisy, smelly, smoky diesels, not to mention the notable scarcity of diesel fuel stations at the time, but the diesel’s high fuel economy and low-cost fuel were attractive, especially in the truck world where a torquey gasser meant sub-10-mpg fuel economy. In 1978, GM and Dodge tied for being the first to offer a diesel pickup engine. The Chevrolet entry was a C10 with the notorious Olds 5.7L V-8 making 120 naturally aspirated horsepower. Dodge fielded a 4.0L (243ci) Mitsubishi NA diesel inline-six with 100 rip-snorting horsepower in half and 3/4-ton 4×2 and 4x4s. Dodgedropped the Mitsu after 1979 and remained diesel-less until 1989, but Chevrolet continued to offer the 5.7 in C10s through 1981, and then replaced it with the vastly better 6.2L in 1982. The stage was now set for a grand entrance by Ford. Introduced in 1993, the original 6.9L diesel evolved rapidly. The first big update was a boost in the compression ratio from 20.7 to 21.5:1. The 1983 blocks, casting number 1805440C1, were problematic due to possible cracking issues. As a result, the rebuilding industry doesn’t rebuild these blocks. In 1984, an improved block design was introduced, casting number 1807996C1. It has some extra material and ribbing to reduce the potential for cracks. The 1983-1984 block also had some issues with cracks around the block heater area, but this was dealt with in 1985. The 1983 also had cracking issues with the heads (casting numbers 1805296C1 and 1809199C1). A stronger design was instituted from 1984 and remained the same all through the 6.9L run (casting numbers 1801809215C91 and 1805855C1). The late-1985-and-up pickup engines are the best of the 6.9s. In 1988, the 7.3L IDI debuted touting a number of improvements. Power was advertised at 180 hp and torque bumped to 338 lb-ft. The 7.3L blocks can be distinguished by a 10809000C1 casting number. With the heads off, they can be identified by their round coolant ports at the corners of the block deck, as opposed to the triangular ports on the 6.9. The 7.3 also benefitted from larger head bolts (1/2-inch vs. 7/16-inch) and of course the larger bore. Thinner cylinder walls, changes in coolant flow and an increased tendency towards core shift made the 7.3 vulnerable to cavitation and pinholes from the water jacket into the cylinder. The oil filler was cast into the pump gear cover. This is a 1992 pickup engine, which featured the serpentine belt system. The 6.9 featured oil-cooled pistons, four bolt mains, a massive forged crank with 2.2-inch rod and 3.1-inch main journals, valve rotators, roller tappets, and a gear-driven cam and injection pump. It was naturally aspirated used the Ricardo V combustion chamber. Indirect injection came from a Stanadyne (Roosa-Master) DB2 rotary pump and pintle-type injectors that popped at 2,100 psi. Issues with cold starting appeared right away, so for the 1984 model year the compression ratio was increased to 21.5:1. Torque rose to 315 lb-ft as a result, and that’s where output would stay for the remainder of the engine’s run. For 1988, the pickup engine got a makeover. The bore was increased by 0.18-inch, bumping up displacement to 7.3L (444 cid). The heads, head bolts, head gaskets, rocker gear and combustion chambers got a work over and the glow-plug system was completely revised. The injection system also got some tuning alterations. As a result, output was boosted to 180 hp at 3,300 rpm and torque to 338 lb-ft (though some spec sheets show 345 lb-ft). In mid-1992, power output was increased to 185 and torque went up to 360. The 1992 model year also brought a serpentine belt system. The pinnacle of the Ford IDI was the 7.3L IDIT turbo engine. It was advertised at 190 hp and 385 lb-ft, but is generally considered to have been underrated and undertuned by Ford so as not to upstage the upcoming Power Stroke. It was a considerably more robust pickup engine, with beefier pistons and rods, a stronger block (casting number 10809000C3) and head gaskets, Inconel exhaust valves and a larger oil cooler. The IDI reached its zenith in late in 1993, when the first turbocharged 7.3 was introduced. It mounted a Garrett wastegated turbo with an A/R of 0.82. Advertised power and torque were 190 hp and 385 lb-ft, but this engine was somewhat underrated. If you look at the nearby power chart, you will see it’s mysteriously cut off at 3,000 rpm vs. The NA engine going to 3,300. The power line looks to still be climbing at 3,000 and extrapolations show the turbo engine would have developed more than 200 hp at 3,300 rpm. Speculation within the IDI enthusiast community is that with the new 210-hp Power Stroke engine on the horizon, Fordmarketing wanted to make sure the new engine would be more appealing than the old one. The IDI turbo engine was hyped more for its high-altitude performance than its raw power, but tweaking in the intervening years have shown the IDI turbo is fully capable of 250 hp with only minor tuning. Internally, the IDI turbo received improved head gaskets with a heavier fire ring. The pistons were given keystone rings and anodized crowns. The wrist pin diameter was increased from 1.110- to 1.308-inch, Inconel exhaust valves were added, and the oil cooler bundle was increased from 24FPI (fins per inch) to 30. The injection pump calibration was altered and new injectors were fitted. Minimum boost was 5 psi but most developed 8-10 psi in service. The Turbo IDI and the Power Stroke shared the stage in 1994 and sales overlapped a little after the Power Stroke’s mid-year intro. In reality, the Power Stroke is very much the IDI engine’s progeny. The IDI’s heritage is clear, especially in the first-generation Power Strokes, and there are even a few interchangeable parts. The evolution continued with the debut of the 6.7L Power Stroke Diesel engine in 2011, marking a new era in Ford’s diesel journey. This engine was revolutionary, featuring advanced technologies that improved performance and efficiency. By 1999, enhancements such as better turbo tuning and electronic fuel pump control allowed the Power Stroke engines to reach 235 horsepower and 525 lb-ft of torque. These improvements showcased Ford’s commitment to pushing the boundaries of diesel performance. Fast forward to 2023, the fourth generation of the 6.7-liter Power Stroke engine arrived, boasting cutting-edge technological advancements. This latest iteration underscores Ford’s ongoing dedication to innovation, illustrating how far their diesel engines have evolved since the early days. Nearly 1.5 million 6.9L and 7.3L IDI engines were produced by International Harvester (now known as Navistar International). They are truly one of the cornerstones of the growth of diesel power for pickup engines. The IDI is an old-school engine and can’t hold a candle to the modern electronic engines in the power department, and yet it has a large and loyal following. There are countless IDIs still on the road, some still working in commercial livery, and they seem to just go on and on. No question, the Ford IDI engine is nowhere near the end of the road. What are the recent advancements in Ford diesel engines? By 2023, Ford introduced the fourth generation of the 6.7-liter Power Stroke engine, which features significant technological advancements, illustrating the progress made since their initial diesel engine debut. What are the significant milestones in the evolution of Ford’s diesel engines? Key milestones include the 1993 debut of the turbocharged IDI 7.3-liter engine and the ongoing evolution of the Power Stroke engines, showcasing continuous improvements and enhancements. How did Ford’s diesel engines evolve in terms of transmission and technology? Ford’s diesel engines saw significant technological advancements, such as the upgrade from a four-speed to a five-speed transmission in 1987 and the 1994 introduction of direct injection and electronic controls with the Power Stroke engine. What was Ford’s starting point in diesel engine development? Ford began its journey into diesel engines in 1982, collaborating with International Truck and Engine Corp. To create a 6.9-liter indirect injection engine. How do Ford diesel engines compare to the competition in terms of performance and versatility? It was the 1970s and people were reeling from the shock of gas prices that had tripled in just a few short years. The effect was profound: a national 55 mph speed limit, government-mandated fuel economy standards, and consumers scrambling for vehicles with better fuel economy. Diesel pickup engines, at the time not much of a presence in the American car and light truck market, were immediately eyed as a fuel economy answer. The collective American eyebrow raised at the idea of noisy, smelly, smoky diesels, not to mention the notable scarcity of diesel fuel stations at the time, but the diesel’s high fuel economy and low-cost fuel were attractive, especially in the truck world where a torquey gasser meant sub-10-mpg fuel economy. In 1978, GM and Dodge tied for being the first to offer a diesel pickup engine. The Chevrolet entry was a C10 with the notorious Olds 5.7L V-8 making 120 naturally aspirated horsepower. Dodge fielded a 4.0L (243ci) Mitsubishi NA diesel inline-six with 100 rip-snorting horsepower in half and 3/4-ton 4×2 and 4x4s. Dodgedropped the Mitsu after 1979 and remained diesel-less until 1989, but Chevrolet continued to offer the 5.7 in C10s through 1981, and then replaced it with the vastly better 6.2L in 1982. The stage was now set for a grand entrance by Ford. Introduced in 1993, the original 6.9L diesel evolved rapidly. The first big update was a boost in the compression ratio from 20.7 to 21.5:1. The 1983 blocks, casting number 1805440C1, were problematic due to possible cracking issues. As a result, the rebuilding industry doesn’t rebuild these blocks. In 1984, an improved block design was introduced, casting number 1807996C1. It has some extra material and ribbing to reduce the potential for cracks. The 1983-1984 block also had some issues with cracks around the block heater area, but this was dealt with in 1985. The 1983 also had cracking issues with the heads (casting numbers 1805296C1 and 1809199C1). A stronger design was instituted from 1984 and remained the same all through the 6.9L run (casting numbers 1801809215C91 and 1805855C1). The late-1985-and-up pickup engines are the best of the 6.9s. In 1988, the 7.3L IDI debuted touting a number of improvements. Power was advertised at 180 hp and torque bumped to 338 lb-ft. The 7.3L blocks can be distinguished by a 10809000C1 casting number. With the heads off, they can be identified by their round coolant ports at the corners of the block deck, as opposed to the triangular ports on the 6.9. The 7.3 also benefitted from larger head bolts (1/2-inch vs. 7/16-inch) and of course the larger bore. Thinner cylinder walls, changes in coolant flow and an increased tendency towards core shift made the 7.3 vulnerable to cavitation and pinholes from the water jacket into the cylinder. The oil filler was cast into the pump gear cover. This is a 1992 pickup engine, which featured the serpentine belt system. The pinnacle of the Ford IDI was the 7.3L IDIT turbo engine. It was advertised at 190 hp and 385 lb-ft, but is generally considered to have been underrated and undertuned by Ford so as not to upstage the upcoming Power Stroke. It was a considerably more robust pickup engine, with beefier pistons and rods, a stronger block (casting number 10809000C3) and head gaskets, Inconel exhaust valves and a larger oil cooler. The Turbo IDI and the Power Stroke shared the stage in 1994 and sales overlapped a little after the Power Stroke’s mid-year intro. In reality, the Power Stroke is very much the IDI engine’s progeny. The IDI’s heritage is clear, especially in the first-generation Power Strokes, and there are even a few interchangeable parts. Nearly 1.5 million 6.9L and 7.3L IDI engines were produced by International Harvester (now known as Navistar International). They are truly one of the cornerstones of the growth of diesel power for pickup engines. The IDI is an old-school engine and can’t hold a candle to the modern electronic engines in the power department, and yet it has a large and loyal following. There are countless IDIs still on the road, some still working in commercial livery, and they seem to just go on and on. No question, the Ford IDI engine is nowhere near the end of the road. Fast forward to today, and Ford’s diesel engines continue to set the benchmark in performance and versatility. The modern 6.7L Power Stroke diesel engine stands as a testament to Ford’s engineering prowess. With its High Output trim, it’s not only a powerhouse in terms of specs but also delivers exceptional real-world performance, making it a top contender in the market. This engine’s versatility is showcased as it powers various models within the Ford Super Duty series, demonstrating the evolution from its historical roots in the IDI engines to a leader in today’s competitive landscape. How does Ford’s diesel engine compare to the competition? The 6.7L Power Stroke is recognized as one of the leading diesel engines on the market, indicating a competitive edge over other brands. In which Ford vehicles is this engine used? The engine is prominently featured in the Ford Super Duty series, showcasing its integration into heavy-duty vehicles. How does the engine perform in real-world applications? This engine is known for its outstanding real-world performance and adaptability, making it a preferred choice for various demanding tasks. Which Ford diesel engine is considered the best right now? The 6.7L Power Stroke diesel engine, particularly in its High Output trim, is regarded as one of the top-performing Ford diesel engines currently available. What are the performance and reliability characteristics of the 7.3L Power Stroke V8 engine? The pinnacle of the Ford IDI was the 7.3L IDIT turbo engine. It was advertised at 190 hp and 385 lb-ft, but is generally considered to have been underrated and undertuned by Ford so as not to upstage the upcoming Power Stroke. It was a considerably more robust pickup engine, with beefier pistons and rods, a stronger block (casting number 10809000C3) and head gaskets, Inconel exhaust valves and a larger oil cooler. The IDI turbo received improved head gaskets with a heavier fire ring. The pistons were given keystone rings and anodized crowns. The wrist pin diameter was increased from 1.110- to 1.308-inch, Inconel exhaust valves were added, and the oil cooler bundle was increased from 24FPI (fins per inch) to 30. The injection pump calibration was altered and new injectors were fitted. Minimum boost was 5 psi but most developed 8-10 psi in service. The Turbo IDI and the Power Stroke shared the stage in 1994 and sales overlapped a little after the Power Stroke’s mid-year intro. In reality, the Power Stroke is very much the IDI engine’s progeny. The IDI’s heritage is clear, especially in the first-generation Power Strokes, and there are even a few interchangeable parts. 7.3L Power Stroke V8: Performance and Reliability The 7.3L Power Stroke V8 engine, introduced in 1994, marked a significant milestone in diesel performance. Initially producing 215 horsepower and 425 lb-ft of torque, it later saw enhancements in the 1996 model, reaching 225 horsepower and 450 lb-ft of torque. This engine wasn’t just about raw power; it embodied performance upgrades that maximized its capabilities, such as: Larger injectors State-of-the-art turbo technology Electric lift pumps Air-to-air intercooler Beyond performance, the 7.3L Power Stroke V8 is renowned for its reliability. Many engines have surpassed 300,000 to 400,000 miles, demonstrating its long-lasting nature. Fuel efficiency is another strong suit, with the engine achieving approximately 13-15 mpg in the city and about 20 mpg on the highway, making it a durable choice for both short trips and long hauls. In essence, while the Turbo IDI laid the groundwork, the Power Stroke took those foundations and built an enduring legacy. The robustness of the IDI lives on in the Power Stroke, ensuring it remains a formidable option for diesel enthusiasts. What are the fuel efficiency figures for the 7.3L Power Stroke V8? The engine offers fuel efficiency of approximately 13-15 mpg in city driving and around 20 mpg on the highway. What is the expected mileage lifespan of the 7.3L Power Stroke V8 engine? Many engines of this type have been known to surpass 300,000 to 400,000 miles, highlighting their reliability. What performance upgrades are available for the 7.3L Power Stroke V8? Upgrades include larger injectors, a state-of-the-art turbocharger, electric lift pumps, and an air-to-air intercooler to enhance performance. What are the horsepower and torque figures for the 7.3L Power Stroke V8? Initially, the engine delivered 215 horsepower and 425 lb-ft of torque. In 1996, these figures increased to 225 horsepower and 450 lb-ft of torque. How does Ford address fuel economy and emissions control in its diesel engines? It was the 1970s and people were reeling from the shock of gas prices that had tripled in just a few short years. The effect was profound: a national 55 mph speed limit, government-mandated fuel economy standards, and consumers scrambling for vehicles with better fuel economy. Diesel pickup engines, at the time not much of a presence in the American car and light truck market, were immediately eyed as a fuel economy answer. The collective American eyebrow raised at the idea of noisy, smelly, smoky diesels, not to mention the notable scarcity of diesel fuel stations at the time, but the diesel’s high fuel economy and low-cost fuel were attractive, especially in the truck world where a torquey gasser meant sub-10-mpg fuel economy. Fast forward to today, and the evolution of diesel engines has transformed them into champions of efficiency and environmental responsibility. Modern diesel trucks can now travel 20-35% farther due to fuel-efficient designs, addressing the very concerns that once made consumers wary. Innovations in Fuel Economy and Emissions Control Manufacturers have invested heavily in refining diesel technology, focusing on both fuel economy and emissions. Take for instance, advanced engines now equipped with cutting-edge emissions control systems. Features such as ‘Instant Start’ glow plugs help minimize emissions upon ignition, while the integration of high-tech emission-control systems using diesel exhaust fluid keeps pollutants in check. These advancements ensure that diesel engines not only deliver on the promise of better fuel economy but also contribute to cleaner air, reshaping the diesel narrative from the 1970s to a modern solution for environmentally conscious drivers. What is Ford’s market strategy for diesel engines? Ford is committed to securing a specialized position within the diesel engine market, indicating a strategic focus on advancing their diesel technology and offerings. What specific emissions control technologies does Ford use in its diesel engines? Ford employs advanced emissions control technologies in its diesel engines, including features like ‘Instant Start’ glow plugs and systems that utilize diesel exhaust fluid to minimize emissions. How does Ford enhance fuel economy in its diesel engines? Ford diesel trucks are designed to travel 20-35% farther on the same amount of fuel, thanks to their focus on fuel-efficient engineering. Which Ford diesel engines are considered the most reliable? The late-1985-and-up pickup engines are the best of the 6.9s. These engines are celebrated for their durability and have been a favorite among enthusiasts who value reliability in demanding conditions. For those seeking unparalleled longevity, the 7.3L Power Stroke V8 is a standout choice. Known for its remarkable lifespan, this engine often surpasses 300,000 to 500,000 miles with proper maintenance. This makes it an ideal option for those who prioritize endurance over the years. On the other hand, the 6.7L Power Stroke V8 excels when it comes to towing capacity. With the ability to handle an upper gooseneck limit of 40,000 lbs, it meets the needs of drivers who require robust power for heavy-duty tasks. Both engines showcase Ford’s commitment to engineering excellence, providing options that cater to different aspects of reliability, whether it’s long-term use or towing prowess. What are the performance metrics or characteristics associated with these engines? The 7.3L engine can last anywhere from 300,000 to 500,000 miles when well-maintained. The 6.7L engine boasts a towing capacity of up to 40,000 pounds with a gooseneck hitch. Why are these engines considered reliable? The 7.3L is famed for its longevity, often achieving impressive mileage with proper care. Meanwhile, the 6.7L stands out for its exceptional towing capabilities. Which Ford diesel engines are considered the most reliable? The 7.3L Power Stroke V8 and the 6.7L Power Stroke V8 are known for their reliability. Total 0 Shares Share 0 Tweet 0 Pin it 0 Share 0
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